| 释义 |
thf 英'tiː'etʃ'ef美'tiː'etʃ'ef COCA¹⁸⁸⁴⁵⁴BNC⁹⁷²³³⁺⁷
基本例句
adj.高频调谐的¹⁰⁰
All of the2,4 pyrrolindinediester derivatives were reduced with lithium aluminum hydride in anhydrous THF, and ten new chiral2,4 Dihydroxylmethylpyrrolidine derivatives were found.
然后，在无水 THF中用氢化铝锂还原，得纯的手性2，4二羟甲基四氢吡咯衍生物。 cnki
As for star-shaped polybutadiene, the results show that1,2- content of star-shaped polybutadiene increases with the increase amount of THF.
结果表明，对于星型聚丁二烯，随着 THF用量的增加，星型聚丁二烯的1，2-结构含量增加； fabiao
The application of extractive distillation and reactive extractive distillation in the recovery of tetrahydrofuran THF has been studied.
研究了萃取精馏技术和反应萃取精馏技术在回收四氢呋喃 THF中的应用。 cnki
The copolymers prepared by solution polymerization in THF or dioxane were better supporter for the synthesis of highly active supported catalyst.
在溶剂 THF或二氧六环的存在下制得的苯乙烯-丙烯酸共聚物最适宜于合成高活性的载体钕络合物。 gfzxb
The effect of THF on the kinetics of the anionic polymerization of styrene in Cyclohexane was studied.
本文研究了四氢呋哺对环已烷中苯乙烯阴离子聚合动力学的影响。 cnki
The MEH- PPV chains are separated basically in THFtetrahydrofuran dilute solution.
在 THF稀溶液中， MEH- PPV分子链基本上皆为分立态； cnki
The polar solvent, for example THF, has little influence on the microstructure- of grafting chain of polyisoprene.
极性溶剂四氢呋喃的加入，对接枝链微结构的影响很小。 cnki
The reductive amination of aldehydes and ketones with amines in the presence of sodium malonyloxyborohydride 1 prepared in situ from malonic acid and sodium borohydride in anhydrous THF is described.
叙述了在原位生成的丙二酰氧基硼氢化钠存在下的醛、酮还原胺化反应。 chemyq
The synthesis of fatty acid ethyl ester in THF catalyzed by lipase was studied.
用脂肪酶在四氢呋喃中催化合成硬脂酸酯。 dictall
As for star-shaped butadiene- styrene random copolymer, 1,2- content rises and styrene content decreases with the increase of THF dosage;
对于星型丁苯无规共聚物，随着 THF用量的增加，1，2-结构含量逐渐增加，苯乙烯结构含量呈降低的趋势； fabiao
Finally, the development trend of THF application is analyzed.
讨论了应用研究中进一步的发展方向。 chemyq
In electron donor tetrahydrofuran THF or its mixture with hydrocarbon as the reaction medium the product is DEAATHF complex;
在给电子溶剂四氢呋喃 THF或烃与 THF混合溶剂中，反应产物是 DEAA· THF络合物； chemyq
It was found that suitable technological conditions are: THF or THF2G as polar modifiers;
研究结果表明适宜的工艺条件为：极性添加剂 THF或 THF-2G； cnki
Methods: In the presence of hydrochloric acid or nitric acid, geranyl sulfone was prepared from geraniol in isopropyl alcohol or THF under reflux conditions for18 h or28 h, respectively.
方法：以异丙醇或 THF为溶剂，盐酸或硝酸为催化剂，香叶醇与苯亚磺酸钠回流反应18或28 h得香叶基砜。 haoyisheng
Reaction time has little effect on1,2- content and styrene content while cial, 4- content enhances and trans 1,4- content reduces with growth of amount of THF.
随着反应时间的延长，顺1，4-结构含量增加，反1，4-结构含量减少，对1，2-结构含量和苯乙烯结构含量影响不大； fabiao
The paper introduces capacity and demand of THF and poly- THF in the world, and development on produce technology and our country situation.
本文介绍了四氢呋喃和聚四氢呋喃的产能和需求，以及生产技术进展和我国的现状。 chemyq
The results show that the purity as mass fraction of THF recovered from waste pharmaceutical liquor can reach99.
试验结果表明，采用以上技术从制药废液中回收的 THF，纯度按质量分数计可达到99。 dictall
The complex crystal ofm- cresol and urea has been firstly cultivated by using a mixed solvent including ethanol and THF at a proper ratio.
通过使用一定配比的乙醇和四氢呋喃作混合溶剂，第一次培养出尿素和间甲酚的复合物单晶。 chemyq
The process flow was designed and experimentally studied for separation of acetone, tetrahydrofuran THF , triethylamine and water mixture.
对丙酮、四氢呋喃、三乙胺、水混合物的分离进行了工艺流程设计和实验研究。 chemyq
Three new rare earth- allyl compounds, which are very sensitive to air and moisture, have been synthesized by the reaction of anhydrous lanthanide trichloride with allyllithium in THF- ether solution.
由无水稀土氯化物与烯丙基锂在四氢呋喃-乙醚中反应，合成了三个新的对空气极敏感的稀土烯丙基化合物。 cnki
Using22 monoclonal antibodiesMcAbs as probe to analyse the antigenic determinants of crystallized Tian Hua Fen THF or Trichosanthin protein in ELISA additivity test was reported.
本文报道用制备的22株单克隆抗体为探针，采用 ELISA双抗体相加试验以分析结晶天花粉蛋白上抗原决定簇的结果。 cnki
THF and GBL industry will be continuously expanded along with the fast development of the pharmaceutical industry.
THF和 GBL行业将随着医药行业的快速发展而不断地壮大； puworld |